The triquetra has been found on runestones in Northern Europe and on early Germanic coins. It presumably had pagan religious meaning and it bears a resemblance to the Valknut, a symbol associated with Odin.
G Scale Trains are usually referred to as Garden Trains since they are the largest of the model trains and are used outdoors as well as indoors.
Guinness Railroad World Records LONGEST TRAIN: The longest and heaviest freight train on record was one about 4 miles in length consisting of 500 coal cars with three 3600 hp diesels pulling and three more in the middle, on the Iaegar, WV, to Portsmouth, OH stretch of 157 miles on the Norfolk & Western RR on Nov 15, 1967.